We tried this back in May. Admittedly, it is a bit overpriced for the kind of food you get, but the food wasn't horrible either. We knew that going in, but wanted to be darn sure to get a decent spot for Fantasmic! on the one night we had available to see it. Generally speaking, it's worth it if you really want to be sure to get a good spot for Fantasmic! Otherwise, I'd pass.
Now to explain how well this worked for us...
Our plan would've worked, except for poor guest behavior. One woman, in particular, was so hell-bent on getting to her front-row spot that once they opened up the area for us to enter, she pushed her way through, in-between me and my oldest daughter (who were holding hands when this happened), knocked my daughter over, and shoved her elbow into my daughter's ear so hard that the post on her earring left a mark on the side of her head. The woman got her front row spot and we were left near the back of the space trying to squeeze into the taped off area they had marked off for us.
And now the rest of the story...
I've come to expect rude guest behavior and usually just brush it off. But this was different. This woman's behavior resulted in pain and tears in my daughter's eyes. Had I not done anything, the woman would've been rewarded for it with a front-row spot. So I found the nearest CM, and explained what had happened. The CM first made sure my daughter didn't need medical attention and then gave us a very nice space to view the show from along with a handful of other people with physical disabilities. It's my understanding, although I don't know this to be true, that he was going to make sure that the woman and her family were removed from the show.
The moral of the story: The Aladdins Oasis Fantasmic! package is a bit overpriced, but worth it if you want to get a decent viewing location. But please be respectful of other guests. And under no circumstances hurt my daughter or make her cry or I'll do what I can to ruin your day at Disneyland.